Methyl 3 '-benzyl-4 '-(2,4-dichlorophenyl)1 '-methyl-2-oxospiro[indoline-3,2 '-pyrrolidine]-3 '-carboxylate

In the title compound, C27H24Cl2N2O3, the indole ring system is essentially planar, with a maximum deviation of 0.082 (2) angstrom for the carbonyl C atom. It makes a dihedral angle of 88.53 (6)degrees with the mean plane of the 4-methylpyrrolidine ring, which adopts an envelope conformation with the N atom at the flap position. The molecular structure is stabilized by intramolecular C-H center dot center dot center dot O hydrogen bonds, which generate S(6) and S(7) ring motifs, and an intramolecular pi-pi interaction involving the benzyl and dichloro-substituted benzene rings [centroid-centroid distance = 3.6291 (11) angstrom]. In the crystal, molecules are linked via N-H center dot center dot center dot O hydrogen bonds, forming C(7) chains running parallel to [101].